on 16-11-2021 05:46 PM
My client is a commercial sender attempting to deliver both marketing email and order notifications to your recipients. We've been receiving the following error sporadically:
5.1.0 [string redacted] Sorry, we’ve identified a number of outgoing emails from your email provider as spam so we haven’t been able to send your email to its intended recipient. Please try again later or using an alternative email address. For more information visit our help article (link: help2.talktalk.co.uk/i-cant-send-or-receive-emails) (TT406)
These messages only impact portions of messages sent. It is not a complete block, which gives me the impression that it's an issue of false positives or send rates. I need clarification on this.
on 17-11-2021 08:52 AM
on 16-11-2021 06:20 PM
You've already posted using the Pathwire name that we know is a marketing mail service and we don't post email addresses in this help Community. Looks like you'll need to wait for contact with TalkTalk Support if you'd rather not reveal the information that TalkTalk recipients see in their mail messages.
16-11-2021 05:58 PM - edited 16-11-2021 06:05 PM
The block on delivery may or may not be related to your client's mail messages but will be because the mail service sending the mail messages has been identified as sending spam. This is either because the mail service is on spam blacklists or mail has been marked as spam by TalkTalk Mail users.
TalkTalk will need to see an example of mail that's been blocked, i.e. one of the mail messages that have been bounced back with the TT406 error code. Useful to know what size distribution lists are currently in use and whether these exceed 150 recipients per send and what the rate of sending is to the TalkTalk MX servers.
What's the originating domain and the sender IP address so we can get a heads start on identifying the issue(s)?